As you should know, Deviant Art is an online art hosting service used by many people, especially gamers and such like, and this BB code allows embeds of files stored there by the members to be posted on your forums, ideal for when said members want to post their fan art or something which is hosted on their account on your forums.
Title: DeviantART

Sorry for having to update, I needed to check the right syntax to fix and I have so much BB code installed on my own forum, it crashes the browser sometimes when loading the custom BB code editing page so I needed to make sure I didn't have to repost the topic. Now all fixed!